python条件语句和变量赋值

python的条件语句

字符串内变量赋值的方法

name = input("name:") age = int(input("age:")) job = input("job:") salary = input("salary:") info = ''' ---------- info of %s ---------- Name:%s Age:%d Job:%s Salary:%s ''' % (name,name,age,job,salary) info2 = ''' ---------- info of {_name} ---------- Name:{_name} Age:{_age} Job:{_job} Salary:{_salary} ''' .format(_name=name,_age=age,_job=job,_salary=salary) print(info2)

if

import getpass _username = "asdf" _password = "123" username = input("username:") #password = getpass.getpass("password:") password = input("password:") if _username == username and _password == password: print("welcome user {name} login...".format(name=username)) else: print("Invalid username or password!")

while

age_of_oldboy = 56 count = 0 while count < 3: guess_age = int(input("guess age:")) if guess_age == age_of_oldboy: print("you got it!") break elif guess_age > age_of_oldboy: print("thing smaller") else: print("think bigger") count +=1 else: print("you try too many")

for

age_of_oldboy = 56 count = 0 for i in range(3): guess_age = int(input("guess age:")) if guess_age == age_of_oldboy: print("you got it!") break elif guess_age > age_of_oldboy: print("thing smaller") else: print("think bigger") else: print("you try too many")